<!DOCTYPE html>
<style>
  #parent {
    border: solid;
    border-image-source: url('resources/border-image.png');
    border-image-slice: 10%;
    border-image-width: 2;
    border-image-outset: 1;
    border-image-repeat: repeat;
  }

  #child {
    border: inherit;
  }
</style>
<div id="parent">
  <p>Parent with border-image</p>
  <span id="child">Child - should inherit border-image</span>
</div>
